Whirlpool bathtub



FIG. 1 is a perspective view of a whirlpool bathtub incorporating my new design.

FIG. 2 is a sectional view of one end of the whirlpool bathtub of FIG. 1.

FIG. 3 is a sectional view of the other end of the bathtub of FIG. 1.

FIG. 4 is a planar view of the whirlpool bathtub of FIG. 1. 

The ornamental design for a whirlpool bathtub, as shown. 